DR. AARON MARK BROWN M.D.
NPI 1285054932
Surgery - Trauma Surgery in Longview, WA
About Dr. Aaron Mark Brown M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. AARON MARK BROWN M.D. (NPI 1285054932) is an individual trauma surgery provider in Longview, Washington, licensed in Washington (MD70061275) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, is affiliated with Nemaha Valley Community Hospital, and maintains a secondary practice location in Honolulu.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Aaron Mark Brown M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
6Medicare enrollment records show Aaron Brown reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Longview, WA 98632
- Reassigned Medicare billing, Washington enrollment
- 308 clinicians in this Medicare group
Hood River, OR 97031
- Reassigned Medicare billing, Oregon enrollment
- 195 clinicians in this Medicare group
Lindsay, NE 68644
- Reassigned Medicare billing, Nebraska enrollment
- 59 clinicians in this Medicare group
Seneca, KS 66538
- Reassigned Medicare billing, Kansas enrollment
- Also billed through NPI 1225004914 (Kansas)
- 19 clinicians in this Medicare group
Sabetha, KS 66534
- Reassigned Medicare billing, Kansas enrollment
- Also billed through NPI 1568491033 (Kansas)
- 20 clinicians in this Medicare group
Holton, KS 66436
- Reassigned Medicare billing, Kansas enrollment
- Also billed through NPI 1235238296 (Kansas)
- 44 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Nemaha Valley Community Hospital
Critical Access Hospitals · Seneca, KSHolton Community Hospital
Critical Access Hospitals · Holton, KSGreat Plains Of Sabetha
Critical Access Hospitals · Sabetha, KSMid-Columbia Medical Center
Acute Care Hospitals · The Dalles, ORPeacehealth St John Medical Center
Acute Care Hospitals · Longview, WAMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LONGVIEW, WA 98632
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Aaron Brown's NPI number?
The NPI number for Aaron Brown is 1285054932. It was assigned to this individual provider in the NPPES registry on April 21, 2014.
Where is Aaron Brown located?
Aaron Brown practices at 1615 Delaware St, Longview, WA 98632. The listed phone number is (360) 501-3500.
What is Aaron Brown's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Trauma Surgery, with taxonomy code 2086S0127X.
Is Aaron Brown enrolled in Medicare?
Yes. Aaron Brown is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Aaron Brown's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Brown reassigns Medicare benefits to 6 organizations: Peacehealth (Longview, WA), Mid-Columbia Medical Center (Hood River, OR), Columbus Community Hospital Inc (Lindsay, NE), Nemaha Valley Community Hospital (Seneca, KS), Great Plains Of Sabetha Inc (Sabetha, KS) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Aaron Brown's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Aaron Brown accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Ambetter of Oklahoma and Moda Health Plan, Inc. and 3 other insurers list Aaron Brown as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Aaron Brown affiliated with any hospitals?
According to CMS data, Aaron Brown is affiliated with Nemaha Valley Community Hospital, Holton Community Hospital, Great Plains Of Sabetha, Mid-Columbia Medical Center and Peacehealth St John Medical Center.
When was this NPI record last updated?
The NPPES record for Aaron Brown was last updated on January 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.